MSP430F5438IPZ - 25MHz, 256KB MCU with 12-bit ADC | TI
料号： MSP430F5438IPZ ✓ 量产中MSP430F5438IPZ 概述
A microcontroller is a programmable integrated circuit that combines a CPU, memory, peripherals, and I/O in one device. The MSP430 family uses a 16-bit RISC architecture with 16-bit registers and constant generators, supporting efficient control and signal-processing workloads. The MSP430F5438 belongs to the MSP430F5xx family of mixed-signal MCUs, combining digital control with analog measurement and low-power operating modes.
Key features include 256 KB of flash, 16 KB of SRAM, a 12-bit ADC, a hardware multiplier, DMA, four USCI peripherals, timers, and a real-time clock. The device is suitable for industrial instrumentation, sensor acquisition, low-power embedded control, communications, and signal-processing applications. Its 14 x 14 mm 100-LQFP package provides a conventional surface-mount footprint with numerous external peripheral connections.
The MSP430F5438 product page identifies a 25 MHz operating speed and 256 KB flash, while the MSP430F5438IPZ distributor listing specifies the 100-LQFP (14 x 14) package and 16-bit MCU architecture. The mixed-signal design allows firmware to acquire analog inputs and control digital peripherals without requiring separate analog or communications devices.
Typical designs use the ADC for sensor and analog signal measurement, UART or SPI for external devices, I2C for sensors and memory, DMA for efficient peripheral transfers, and timers for precise event control. The MSP-EXP430F5438 experimenter-board ecosystem provides a relevant development context, while the MSP430 hardware tools user guide is identified as a reference for supported target devices.
When designing a board around this MCU, verify the exact pin functions, power requirements, clock configuration, and peripheral multiplexing in the MSP430F5438 datasheet. Place decoupling close to the power pins and route sensitive analog inputs away from high-current switching nodes. The verified distributor listing identifies an 18 MHz CPU entry, while the manufacturer product page identifies a 25 MHz MCU; these values should be reconciled against the exact device revision and operating conditions before release.
This page synthesizes verified manufacturer and distributor specifications, package information, application guidance, and procurement references for engineers evaluating the MSP430F5438IPZ.
直接替换替代料： MSP430F5438IPZ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MSP430F5438IPZ （相同外形与封装尺寸） ——差异在于 Hardware Multiplier, Package, CPU Architecture, RoHS Status, Timers.
MSP430F5438AIPZ
✅ 直接替换联系询价
查看数据手册 →MSP430F5438IPZR
✅ 直接替换联系询价
查看数据手册 →MSP430F5438AIZQWT
✅ 直接替换联系询价
查看数据手册 →MSP430F5636IPZ
✅ 直接替换📋 参考替代料（不在目录中）
MSP430F1491IPMG4
✅ 直接替换联系询价
查看数据手册 →MSP430F5438IPZ 最大额定值与电气特性
| Product Type | 16-bit ultra-low-power mixed-signal microcontroller |
| CPU Architecture | MSP430 16-bit RISC |
| Manufacturer-Reported Maximum Frequency | 25 MHz |
| Distributor-Reported CPU Frequency | 18 MHz |
| Flash Memory | 256 KB |
| SRAM | 16 KB |
| ADC Resolution | 12-bit |
| Hardware Multiplier | 32-bit hardware multiplier |
| DMA | Supported |
| Serial Communications | UART, SPI, and I2C |
| USCI Peripherals | 4 USCIS |
| Timers | 16-bit timer resources |
| Real-Time Clock | Supported |
| Low-Power Modes | Five power-saving modes |
| RAM-Retention Off Current | 0.1 µA |
| Wake-Up from Standby | Less than 6 µs |
| 封装 | 100-LQFP (14 x 14 mm) |
| 安装类型 | Surface mount |
| DigiKey Availability Statement | Buy now, ships today |
MSP430F5438IPZ 100-lqfp (14 x 14 mm) 引脚配置指南
MSP430F5438IPZ（100-lqfp (14 x 14 mm) 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： MSP430F5438IPZ.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MSP430F5438IPZ 适用于 6 应用s: Industrial Sensor Controller, Low-Power Data Logger, Communications Gateway, Portable Measurement Instrument, Digital Control System, Embedded Industrial Motor Controller.
Industrial Sensor Controller
The MSP430F5438IPZ is a strong fit for an industrial sensor controller because its 12-bit ADC can acquire analog sensor signals while its 256 KB flash and 16 KB SRAM support application code, calibration data, and working buffers. UART, SPI, and I2C allow the controller to connect to sensors, memory, or downstream equipment without requiring separate interface devices. DMA can move peripheral data with less CPU involvement, while five power-saving modes support duty-cycled measurements. The design must still verify ADC input range, reference accuracy, sampling timing, noise behavior, and isolation requirements.
推荐
Low-Power Data Logger
For a low-power data logger, the MSP430F5438IPZ combines 256 KB flash for firmware and data structures with 16 KB SRAM for acquisition buffers. Its low-power modes, 0.1 µA RAM-retention off current, and standby wake-up below 6 µs enable periodic wake, measurement, processing, and sleep cycles. SPI or I2C can interface with external flash or sensors, while the 12-bit ADC supports analog monitoring. Battery-life calculations must include sensor standby current, regulator quiescent current, wake duration, and radio activity rather than the MCU specification alone.
推荐
Communications Gateway
MSP430F5438IPZ can serve as the control processor in a communications gateway because it provides four USCI peripherals and documented UART, SPI, and I2C support. The gateway can bridge a local sensor network to an Ethernet or wireless module while using DMA for efficient transfers. Its 25 MHz manufacturer-described MCU class and 256 KB flash provide capacity for protocol handling and firmware, while low-power modes can reduce consumption during idle periods. Pin multiplexing, baud-rate requirements, buffer depth, isolation, and EMC margins should be checked before finalizing the interface architecture.
推荐
Portable Measurement Instrument
The MSP430F5438IPZ suits portable measurement instruments that combine analog acquisition, local control, and low-power operation. The 12-bit ADC provides a direct sensing path, while the 16-bit MSP430 CPU and hardware multiplier can process control and measurement tasks. UART, SPI, and I2C permit connection to displays, calibration storage, or external converters. Its standby wake-up time below 6 µs supports responsive push-button or timer-driven operation. For precision measurements, evaluate input impedance, sample-and-hold behavior, reference-voltage drift, calibration, and PCB analog-noise coupling.
推荐
Digital Control System
MSP430F5438IPZ is appropriate for embedded digital control because it combines a 16-bit RISC core, timers, DMA, a hardware multiplier, and mixed-signal peripherals. Timers can establish control-loop timing, while ADC inputs provide feedback and PWM or digital outputs can drive actuators through external drivers. The 256 KB flash supports control code and parameter storage, and the LQFP package exposes the required I/O in a conventional 100-pin footprint. Validate loop timing, output settling, watchdog behavior, fault handling, and thermal performance under the worst-case actuator and ambient conditions.
推荐
Embedded Industrial Motor Controller
The MSP430F5438IPZ can control embedded industrial motor systems when the design needs local timing, sensor feedback, and communications in one MCU. Its timers support deterministic event handling, the ADC supports current or position feedback, and UART, SPI, and I2C connect to position sensors, gate drivers, or supervisory controllers. DMA may reduce interrupt load when moving captured data. The 100-LQFP package provides many external signals, but motor systems require careful isolation, gate-driver timing, current sensing, overcurrent protection, thermal design, and PCB creepage and clearance verification.
推荐
推荐产品汇总
工程参考数据： MSP430F5438IPZ ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MSP430F5438AIPZ | MSP430F5438IPZR | MSP430F5636IPZ |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 100-LQFP (14 x 14 mm) | 100-LQFP (14 x 14 mm) - verify exact package | 100-LQFP (14 x 14 mm) | 100-LQFP (14 x 14 mm) - verify exact package |
关键差异点
- Large embedded code and data memory in a low-power 16-bit MCU （对比 MSP430F1491IPMG4)
- Integrated mixed-signal acquisition （对比 MSP430F5636IPZ)
- Documented low-power wake behavior （对比 MSP430F5438AIPZ)
- Established 100-LQFP package identity （对比 MSP430F5438IPZR)
设计说明
Estimated: no power-loss calculation can be produced because the verified data does not provide supply voltage, active current, peripheral loading, or CPU duty cycle. During design, measure the complete operating modes and include regulator efficiency, ADC sampling energy, serial-interface activity, and wake-up timing in the power budget. Use the manufacturer’s current-consumption specifications for the final operating-frequency and voltage conditions rather than extrapolating from the 0.1 µA RAM-retention figure alone.
Place required decoupling capacitors close to the MSP430F5438IPZ power pins and provide a low-impedance ground return. Route 12-bit ADC inputs away from switching nodes, high-current motor paths, and digital clocks. Because the target uses a 100-LQFP package, verify the recommended land pattern and exposed thermal requirements from the manufacturer package drawing before fabrication. ESD protection, series resistance, and analog filtering should be placed where they protect the sensor input without introducing excessive leakage or timing error.
Validate the clock, debug, programming, UART, SPI, and I2C nets with the intended PCB stack-up and peripherals enabled. The device supports fast control and communication functions, but edge rates, capacitance, and interrupt timing still depend on routing and loading. Keep sensitive analog and clock routes away from noisy power stages, use continuous reference planes where practical, and confirm reset and debug behavior in hardware. The verified data does not supply complete pinout or timing tables, so the datasheet is required for final constraints.
Do not treat the MSP430F5438 product-page 25 MHz description and the MSP430F5438IPZ distributor 18 MHz listing as interchangeable without checking the exact device ordering and operating conditions. Also do not assume that an IPZ suffix, replacement candidate, or same-family part preserves pin compatibility. Review memory maps, interrupt vectors, peripheral multiplexing, voltage levels, startup behavior, package dimensions, and tool support before replacing a design. Compliance status also requires a current manufacturer declaration rather than an availability-page assumption.
合规信息
The verified web snippets do not explicitly provide compliance declarations for MSP430F5438IPZ. Obtain current Texas Instruments product and material-compliance documentation for the exact ordering code.
